A survey of HC3N in extragalactic sources - Is HC3N a tracer of activity in ULIRGs? J. E. Lindberg, S. Aalto, F. Costagliola, J.-P. Pérez-Beaupuits, R. Monje and S. Muller A&A, 527 (2011) A150 Published online: 15 February 2011 DOI: 10.1051/0004-6361/201015565